FTHTD-185 A certain hot spring inn has received astonishingly high ratings on multiple travel sites! They offer an extreme service using bubbles!! The title of the article is "What's in the bubbles?" We take a closer look at the secret service that takes place in the private open-air bath!

A certain hot spring inn has received high reviews across multiple travel sites. It seems they offer a special service in their private open-air bath. Apparently, there is something inside the "bubbles" and you have to guess what it is. There are apparently a variety of bubbles, from fluffy to crunchy to slimy... I wonder what kind of game they play in the private open-air bath???